Propagation of Laguerre-Gaussian and elegant Laguerre-Gaussian beams in apertured fractional Hankel transform systems

被引:50
作者
Mei, ZR
Zhao, DM [2 ]
机构
[1] Huzhou Teachers Coll, Dept Phys, Huzhou, Peoples R China
[2] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
关键词
D O I
10.1364/JOSAA.21.002375
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
On the basis of the fact that a hard-edged-aperture function can be expanded into a finite sum of complex Gaussian functions, approximate analytical expressions for the output field distribution of a Laguerre-Gaussian beam and an elegant Laguerre-Gaussian beam passing through apertured fractional Hankel transform systems are derived. Some numerical simulation comparisons are done, by using the approximate analytical formulas and diffraction integral formulas, and it is shown that our method can significantly improve the numerical calculation efficiency. (C) 2004 Optical Society of America.
引用
收藏
页码:2375 / 2381
页数:7
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